Ochsenbein chisel

If one keeps examining a surgical technique in detail over and over again and explicitly questions and improves the instruments used, this eventually results in perfect instruments. The Ochsenbein chisel is a good example in hand: its working end is extremely fine and kept sharp at the same time. Depending on the extraction site, the chisel is available bent downwards or upwards. The millimeter scaling allows reliable orientation in the extraction of cortical bone grafts in oral sites.